where can i buy 16mm tile drill bit ?

Use a tile bit to make the initial hole, then switch to a 16mm masonry bit. This works fine on ceramic tiles. If porcelain, you need a diamond core.

For a 22mm dia hole I used a Dremel to enlarge and smooth a hole made by piercing the tile with a tile drill. I guess it work just as well for a smaller hole.

If its only for a few holes then buy a cheap hss set (metal drills). Use a masonary 1st to go as big as you can... even starting small and going up (make sure not to use hammer action). The once you dont have a masonary just go up in 1mm increments with the hss bits- it'll only take a few minutes to get to 16mm. I tend to do this job after laying the tiles but before grouting, leaving a few days for the adhesive to set. Alternatively, go to a hire shop and hire a bit- you'll only pay for the wear on it. Calum Sabey (NewArk Traditional Kitchens 01556 690544)

snipped-for-privacy@hotmail.com wrote: f its only for a few holes then buy a cheap hss set (drills).

Alternatively, diamond core drills are really inexpensive on ebay. I got one 38mm diamond core drill for 14.99, and it's done >100 holes in sandstone/brick so far. (not from ebay, from

This company have a 16mm drill bit listed .It's under 6 plus shipping .

Stuart Excellent link, will bookmark it for future. Calum Sabey (NewArk Traditional Kitchens 01556 690544)